Image artifacts from MR-based attenuation correction in clinical, whole-body PET/MRI

被引：99

作者：

Keller, Sune H. ^{[1
]}

Holm, Soren ^{[1
]}

Hansen, Adam E. ^{[1
]}

Sattler, Bernhard ^{[2
]}

Andersen, Flemming ^{[1
]}

Klausen, Thomas L. ^{[1
]}

Hojgaard, Liselotte ^{[1
]}

Kjaer, Andreas ^{[1
]}

Beyer, Thomas ^{[1
,3
]}

机构：

[1] Copenhagen Univ Hosp, Dept Clin Physiol Nucl Med & PET, Rigshosp, DK-2100 Copenhagen, Denmark

[2] Univ Hosp Leipzig, Dept Nucl Med, Leipzig, Germany

[3] Cmi Experts GmbH, Zurich, Switzerland

来源：

MAGNETIC RESONANCE MATERIALS IN PHYSICS BIOLOGY AND MEDICINE | 2013年 / 26卷 / 01期

关键词：

PET/MRI; MR-based attenuation correction; Image artifacts; Pitfalls; SEGMENTATION; TOMOGRAPHY;

D O I：

10.1007/s10334-012-0345-4

中图分类号：

R8 [特种医学]; R445 [影像诊断学];

学科分类号：

1002 ; 100207 ; 1009 ;

摘要：

Integrated whole-body PET/MRI tomographs have become available. PET/MR imaging has the potential to supplement, or even replace combined PET/CT imaging in selected clinical indications. However, this is true only if methodological pitfalls and image artifacts arising from novel MR-based attenuation correction (MR-AC) are fully understood. Here we present PET/MR image artifacts following routine MR-AC, as most frequently observed in clinical operations of an integrated whole-body PET/MRI system. A clinical adoption of integrated PET/MRI should entail the joint image display and interpretation of MR data, MR-based attenuation maps and uncorrected plus attenuation-corrected PET images in order to recognize potential pitfalls from MR-AC and to ensure clinically accurate image interpretation.

引用

页码：173 / 181

页数：9

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